SU476742A3 - Device for flat continuous pressing of plates - Google Patents

Description

3

that 5, which has channels 6 passing through the plate and 3, which are connected to each other by means of pipe gauge 7, PA, at the ends.

On the side of each heating plate 5 that is opposite to the plate 1, there is a plate for the inverse supply 8, which has grooves 9 through which the roller chain 4 returns back. Therefore, the roller chains 4 surround the heating plates 5 along their length.

The forces acting on Nlntu 1 are perceived by the supports 10. Oiors 10, located at the top and bottom of the plate 1, are mounted on the side outside the plate using spindle or hydraulic power elements, so that they can jointly press the plate 1 through the backplate 8 and the TCTVTbHbie plate 5 and rollers 4.

The tapes 2, 3 do not close at the side with the edge of the heating plate 5 or po; 1ulyuyu chain 4, and protrude to the outside in area 11 otpit; P) but the roller chain 4.

In order to counteract the drop in temperature, heating channels are provided in the form of pipelines 12, which extend along the edges of the ribbons 2, 3. Pipelines 12 have clamps with a gap of 13 steaks 14 with longitudinal ribs 15. The latter also have, besides the supply, a value that consists in forming with the outer sides of mites 2, 3 a labyrinth seal, so that the air entering through the opening 13 into the area of the rollers 4 and the exit nip between the wall part M retains a slight overpressure for to block impurities from entering the area of the rollers.

FIG. 2 image extreme area leite 2, 3 for pressing. Instead of heating channels 12, an infrared heating element 16 of a rod-shaped shape of considerable length is provided, which gives off heat by radiation. Intense radiation is reached if the infrared heating element 16 is located between the extreme zones of mites for pressing 2, 3, as shown in fig. 2 strong line. The working thickness of the device is regular, and the belts 2, 3 for the pressing are tested so that the heating element no longer passes between them. In such cases, it is recommended that the heating element be placed outside the ribbons of the ribbons 2, 3 for compression, as shown in FIG. 2 by the dashed line.

The induction heating device 17 heats the extreme zone of the press bands and causes, in the extreme zones of the bands 2, 3, made of steel, eddy currents, which cause the desired higher temperature.

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In all cases, the electric device may extend along the entire longitudinal section on which pressure is applied. But a variant is also possible in which heating devices are attached to the tapes of the press, but not only the entire length of the stage, but only in one or 1; several places along the longitudinal section and in the next .. or after it. As a heat transfer fluid supplied to the channels 12, PS can be supplied from the hot coolant in the form of a gas or liquid.

The device works as follows. A chip mass 1 enters the space between leites 2, 3. Heating channels are fed through channels 6, which increase the temperature of the heating plates 5, so that teilo through rollers 4 is not distributed to leites 2, 3 and from there pas mass 1.

Hot air is blown through the ion channels 12, which gives up its tenlo on the edge of the mite 2, 3, so that you can see that the pressure of the rollers is higher

PREPARATION METHOD

Claims (5)

1. A device for flat continuous pressing of plates, advantage1, which is typical of wood chipboards, which includes pressing plates with rollers and a heating system, leites, shaving plates with its working part, which means, in order to decrease the size The joint is leite, and the machine is equipped with a regular heating temperature located outside the working area of the press bands. 2. Device but n. 1, and that the device for adjustment temperature is made in the form of heating elements. 3. The device according to claim 2, about t of the ln n; e with the fact that the heating element is as a pipe carrier for supplying heat transfer fluid to the non-working part of the tape, at the end of which an etenka is fixed, which is formed on the inner side with ribs and forms a channel with the back side of the tape, and the wall is mounted relative to the rollers with a gap for supplying to the heat transfer medium. 4. The device according to claim 2, characterized in that the heating element is made in the form of a rod radiator radiator forms that are parallel to the feed of the tapes. 5. The device according to claim 2, characterized in that the heating element is made in the form of an induction unit, which is arranged to encompass a criss-force casting. 3 sixteen L / c ::;: 5:; jrr;: r: zr.: z :: c. sixteen/ srig 2 1 3 1 U |  J